Oil gas long-distance pipeline surface crack detection device

Abstract

The utility model discloses an oil-gas long-distance pipeline surface crack detection device, and relates to the technical field of oil-gas pipeline detection. The oil and gas long-distance pipeline surface crack detection device comprises a hollow block, a dust removal mechanism and a locking mechanism, two groups of internal thread blocks are slidably mounted on the inner wall of the hollow block, and a group of connecting blocks are fixedly mounted at the bottoms of the two groups of internal thread blocks respectively; the dust removal mechanism is arranged below the hollow block, the dust removal mechanism comprises arc-shaped air boxes and air injection pipes, the front sides of the two sets of connecting blocks are each fixedly provided with a set of symmetrically-arranged arc-shaped air boxes, the adjacent sides of the arc-shaped air boxes are fixedly provided with a plurality of sets of air injection pipes, and the air injection pipes communicate with the interiors of the arc-shaped air boxes; the locking mechanism is arranged at the top of the hollow block and comprises a threaded rod and a hexagon nut. Air is sprayed to the surface of the infrared detection camera, dust adhering to the surface of the infrared detection camera can be blown away in time without taking down the device, normal detection of the device is guaranteed, and the accuracy of pipeline crack detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas pipeline inspection technology, and in particular to a surface crack detection device for long-distance oil and gas pipelines. Background Technology

[0002] Chinese patent document CN220271194U discloses a surface crack detection device for long-distance oil and gas pipelines, relating to the field of oil and gas pipeline crack detection. The device includes a main support frame with a marking mechanism on its exterior. The marking mechanism comprises a movable plate and two semi-toothed rings. This invention utilizes the marking mechanism and two infrared cameras to detect cracks on the pipeline surface. When a crack is detected, a central controller activates a servo motor, which in turn drives a rotating gear to move the movable plate around the pipeline. Once the movable plate reaches the crack location, the servo motor stops, and the central controller controls an electric telescopic rod to extend. This extension, via a connecting rod, moves a stamp, which contacts the pipeline and marks the location of the crack detected by the infrared cameras. This device allows for multiple markings without disassembling the pipeline, saving time and effort and making the detection process more convenient and efficient.

[0003] During the mobile detection process, dust easily accumulates on the surface of the infrared detection camera, making it difficult to clean in a timely manner. This may affect the normal detection of the device and reduce the accuracy of crack detection. Utility Model Content

[0004] The purpose of this invention is to provide a surface crack detection device for long-distance oil and gas pipelines, which can solve the problem that when the infrared detection camera of the above-mentioned crack detection device is moved for detection, dust easily sticks to the surface, making it difficult to clean in time, which may affect the normal detection of the device and reduce the accuracy of crack detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surface crack detection device for long-distance oil and gas pipelines, comprising a hollow block, a dust removal mechanism, and a locking mechanism. Two sets of internally threaded blocks are slidably installed on the inner wall of the hollow block, and a set of connecting blocks are fixedly installed at the bottom of each of the two sets of internally threaded blocks. The dust removal mechanism is located below the hollow block and includes an arc-shaped wind box and a jet pipe. A set of symmetrically arranged arc-shaped wind boxes is fixedly installed on the front side of each of the two sets of connecting blocks. Multiple sets of jet pipes are fixedly installed on the adjacent sides of the arc-shaped wind boxes, and the jet pipes are connected to the interior of the arc-shaped wind boxes. The locking mechanism is located on the top of the hollow block and includes a threaded rod and a hexagonal nut. The tops of the two sets of internally threaded blocks are fixedly connected to one end of a set of threaded rods, and the outer wall of the threaded rod is threadedly connected to the interior of the hexagonal nut.

[0006] Preferably, the dust removal mechanism further includes an air pump and a three-way flexible hose. The air pump is fixedly installed on the top of the hollow block. The output end of the air pump is fixedly connected to one end of the three-way flexible hose. The other two ends of the three-way flexible hose are respectively fixedly connected to a set of arc-shaped bellows. The three-way flexible hose and the arc-shaped bellows are connected to each other, spraying air onto the surface of the infrared detection camera. The dust adhering to the surface of the infrared detection camera can be blown away in time without removing the device, ensuring the normal detection of the device and improving the accuracy and practicality of pipeline crack detection.

[0007] Preferably, the locking mechanism further includes a positioning plate. The top of the hollow block has two sets of strip openings, and the other end of the threaded rod passes through the strip openings. The positioning plate is fixedly installed at the bottom of the hexagonal nut. The bottom of the positioning plate is in contact with the top of the hollow block but not connected to it. This can assist in positioning the internal threaded block, prevent the bidirectional screw from loosening and rotating, and ensure that the auxiliary roller can always be tightly clamped on the outer wall of the pipe, thus ensuring the stability of the device during operation. The operation is simple and easy to learn.

[0008] Preferably, multiple sets of auxiliary rollers are fixedly installed on the adjacent sides of the connecting block, and an electric roller is fixedly installed on the rear side of the hollow block.

[0009] Preferably, a bidirectional lead screw is rotatably mounted on the inner walls of both sides of the hollow block, the outer wall of the bidirectional lead screw is connected to the internal threads of the two sets of internal threaded blocks, and a knob is fixedly mounted on one end of the bidirectional lead screw.

[0010] Preferably, a set of infrared detection cameras is fixedly installed on each of the adjacent sides of the arc-shaped air box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The surface crack detection device for oil and gas long-distance pipelines uses an air pump, a three-way hose, an arc-shaped air box and an air jet pipe to spray air onto the surface of the infrared detection camera. The dust adhering to the surface of the infrared detection camera can be blown away in time without removing the device, ensuring the normal detection of the device and improving the accuracy and practicality of pipeline crack detection.

[0013] (2) The surface crack detection device for oil and gas long-distance pipelines can assist in positioning the internal thread block by using the threaded rod, hexagonal nut and positioning plate together, so as to avoid the loosening and rotation of the bidirectional screw, and ensure that the auxiliary roller can always be tightly clamped on the outer wall of the pipeline, thus ensuring the stability of the device during operation. It is simple and easy to operate. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the internal threaded block of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the arc-shaped bellows of this utility model.

[0019] Reference numerals: 1. Hollow block; 2. Two-way lead screw; 3. Internal threaded block; 4. Connecting block; 5. Dust removal mechanism; 501. Air pump; 502. Three-way flexible hose; 503. Arc-shaped air box; 504. Air jet pipe; 6. Locking mechanism; 601. Threaded rod; 602. Hexagonal nut; 603. Positioning plate; 7. Auxiliary roller; 8. Electric roller; 9. Infrared detection camera; 10. Knob. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a surface crack detection device for long-distance oil and gas pipelines, comprising a hollow block 1, a dust removal mechanism 5, and a locking mechanism 6. Two sets of internally threaded blocks 3 are slidably installed on the inner wall of the hollow block 1, and a set of connecting blocks 4 are fixedly installed at the bottom of each of the two sets of internally threaded blocks 3. The dust removal mechanism 5 is located below the hollow block 1 and includes an arc-shaped air box 503 and jet pipes 504. A set of symmetrically arranged arc-shaped air boxes 503 is fixedly installed on the front side of each of the two sets of connecting blocks 4. Multiple sets of jet pipes 504 are fixedly installed on adjacent sides of the arc-shaped air boxes 503, and the jet pipes 504 are connected to the interior of the arc-shaped air boxes 503. The locking mechanism 6 is configured with... At the top of the hollow block 1, the locking mechanism 6 includes a threaded rod 601 and a hexagonal nut 602. The tops of the two sets of internally threaded blocks 3 are respectively fixedly connected to one end of a set of threaded rods 601. The outer wall of the threaded rod 601 is connected to the internal thread of the hexagonal nut 602. Multiple sets of auxiliary rollers 7 are fixedly installed on the adjacent sides of the connecting block 4. An electric roller 8 is fixedly installed on the rear side of the hollow block 1. Bidirectional screws 2 are rotatably installed on the inner walls of both sides of the hollow block 1. The outer wall of the bidirectional screws 2 is connected to the internal thread of the two sets of internally threaded blocks 3. A knob 10 is fixedly installed at one end of the bidirectional screws 2. A set of infrared detection cameras 9 are fixedly installed on the adjacent sides of the arc-shaped bellows 503.

[0022] Secondly, the dust removal mechanism 5 also includes an air pump 501 and a three-way hose 502. The air pump 501 is fixedly installed on the top of the hollow block 1. The output end of the air pump 501 is fixedly connected to one end of the three-way hose 502. The other two ends of the three-way hose 502 are respectively fixedly connected to a set of arc-shaped bellows 503. The three-way hose 502 and the arc-shaped bellows 503 are connected to each other, spraying air onto the surface of the infrared detection camera 9. The dust adhering to the surface of the infrared detection camera 9 can be blown away in time without removing the device, ensuring the normal detection of the device and improving the accuracy and practicality of pipeline crack detection.

[0023] Furthermore, the locking mechanism 6 also includes a positioning plate 603. The top of the hollow block 1 has two sets of strip openings. The other end of the threaded rod 601 passes through the strip openings. The positioning plate 603 is fixedly installed at the bottom of the hexagonal nut 602. The bottom of the positioning plate 603 is in contact with the top of the hollow block 1 but not connected. It can assist in positioning the internal threaded block 3, prevent the bidirectional screw 2 from loosening and rotating, and ensure that the auxiliary roller 7 can always be tightly clamped on the outer wall of the pipe, ensuring the stability of the device during operation. It is simple and easy to operate.

[0024] Working principle: In use, the device is mounted on the pipeline. By rotating the double-acting screw 2 through the knob 10, the two sets of internal threaded blocks 3 move relative to each other under the limit of the inner wall of the hollow block 1. This causes the auxiliary roller 7 to clamp onto the outer wall of the oil and gas pipeline, while the electric roller 8 is in contact with the pipeline. By rotating the hexagonal nut 602, the hexagonal nut 602 moves on the threaded rod 601, causing the bottom of the positioning piece 603 to press against the top of the hollow block 1, thus positioning the internal threaded block 3. The electric roller 8 is then started to roll, and the friction between the electric roller 8 and the pipeline causes the device to move on the pipeline. During the movement, the infrared detection camera 9 detects cracks on the surface of the pipeline and transmits the crack location to the controller. When dust adheres to the surface of the infrared detection camera 9, the air pump 501 is turned on, and air is blown into the arc-shaped air box 503 through the three-way hose 502. Then, the air is blown out through the jet pipe 504 onto the surface of the infrared detection camera 9, blowing away the adhered dust.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A surface crack detection device for long-distance oil and gas pipelines, characterized in that, include: Hollow block (1), two sets of internal threaded blocks (3) are slidably installed on the inner wall of the hollow block (1), and a set of connecting blocks (4) are fixedly installed at the bottom of the two sets of internal threaded blocks (3); The dust removal mechanism (5) is located below the hollow block (1). The dust removal mechanism (5) includes an arc-shaped wind box (503) and a jet pipe (504). A set of symmetrically arranged arc-shaped wind boxes (503) is fixedly installed on the front side of the two sets of connecting blocks (4). Multiple sets of jet pipes (504) are fixedly installed on the adjacent sides of the arc-shaped wind box (503). The jet pipes (504) are connected to the interior of the arc-shaped wind box (503). The locking mechanism (6) is located on the top of the hollow block (1). The locking mechanism (6) includes a threaded rod (601) and a hexagonal nut (602). The tops of the two sets of internal threaded blocks (3) are respectively fixedly connected to one end of a set of threaded rods (601). The outer wall of the threaded rod (601) is connected to the internal thread of the hexagonal nut (602).

2. The surface crack detection device for long-distance oil and gas pipelines according to claim 1, characterized in that: The dust removal mechanism (5) also includes an air pump (501) and a three-way hose (502). The air pump (501) is fixedly installed on the top of the hollow block (1). The output end of the air pump (501) is fixedly connected to one end of the three-way hose (502). The other two ends of the three-way hose (502) are respectively fixedly connected to a set of arc-shaped air boxes (503). The three-way hose (502) and the arc-shaped air boxes (503) are connected.

3. The surface crack detection device for long-distance oil and gas pipelines according to claim 2, characterized in that: The locking mechanism (6) also includes a positioning plate (603). The top of the hollow block (1) has two sets of strip openings. The other end of the threaded rod (601) passes through the strip openings. The bottom of the hexagonal nut (602) is fixedly installed with the positioning plate (603). The bottom of the positioning plate (603) is in contact with the top of the hollow block (1) but not connected to it.

4. The surface crack detection device for long-distance oil and gas pipelines according to claim 3, characterized in that: Multiple sets of auxiliary rollers (7) are fixedly installed on the adjacent sides of the connecting block (4), and electric rollers (8) are fixedly installed on the rear side of the hollow block (1).

5. The surface crack detection device for long-distance oil and gas pipelines according to claim 4, characterized in that: The hollow block (1) has a two-way lead screw (2) rotatably installed on the inner walls of both sides. The outer wall of the two-way lead screw (2) is connected to the internal threads of two sets of internal threaded blocks (3). A knob (10) is fixedly installed at one end of the two-way lead screw (2).

6. The surface crack detection device for long-distance oil and gas pipelines according to claim 5, characterized in that: An infrared detection camera (9) is fixedly installed on each of the adjacent sides of the arc-shaped wind box (503).

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